International
Tables for Crystallography Volume A Space-group symmetry Edited by Th. Hahn © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. A. ch. 1.4, p. 7
Section 1.4.2. Symmetry planes parallel to the plane of projection
a
Institut für Kristallographie, Rheinisch-Westfälische Technische Hochschule, Aachen, Germany |
†
The symbols are given at the upper left corner of the space-group diagrams. A fraction h attached to a symbol indicates two symmetry planes with `heights' h and
![]() ‡For further explanations of the `double' glide plane e see Note (iv) ![]() ![]() ![]() §Glide planes d occur only in orthorhombic F space groups, in tetragonal I space groups, and in cubic I and F space groups. They always occur in pairs with alternating glide vectors, for instance |